Preheat oven to 350 degrees F (175 degrees C).,______,Heat an oven-safe Dutch oven over medium-high heat. Cook and stir beef with the onion soup mix in the pot until browned and crumbly, 5 to 7 minutes. Stir tomato sauce, whole kernel corn, and cream-style corn into the beef; add drained shell pasta and stir.,Transfer Dutch oven to the preheated oven and bake for 23 minutes. Stir casserole, top with cheese, and continue baking until the cheese melts, about 5 minutes more.